The filing
SF YIMBY reported the permit filing for 150 Hayes Street on 7 August 2026. Emerald Fund and SDG are jointly responsible for the application. The filing converts the existing 1968 structure and adds one story of 15,530 square feet. The footprint stays as it is.
The apartment count is 104. That is one fewer than the initial announcement, and the source gives no reason for the change.
Where the address sits
150 Hayes Street runs between Polk Street and Van Ness Avenue. The source puts the site one block from City Hall and two blocks from the Civic Center BART station.
Three approaches reach the block: Polk Street, Van Ness Avenue and Hayes Street. A group programme in the Civic Center market uses all three.
What the building adds to the district
The filing adds residences. It publishes no guest rooms, no meeting space and no food and beverage outlet. Civic Center hotel inventory holds where it stands today.
What changes at street level is 104 households arriving beside that inventory. Plan the programme on the supplier set you already hold.
Four questions before the contract
The filing carries no construction schedule, no contractor and no cost. Put the questions to the supplier in one message.
Which permits are issued? What lane or sidewalk closures are planned on Hayes Street? What is the coach staging plan? Who controls the loading side?
Take the answers in writing. The block already carries hotel load-in, and a conversion adds delivery traffic to the same sidewalk.
Load-in on the Polk Street side
Residents will share amenities with 101 Polk Street, per J.K. Dineen's reporting in the San Francisco Chronicle that SF YIMBY cites. The shared list is the existing fitness centre at 101 Polk and a new co-working space.
101 Polk Street is a working address in this district. A group that books amenity space there takes on a second building in its service relationship. Confirm which party controls the shared booking calendar and what notice period applies.
Confirm the pedestrian route between the two addresses. Load-in walks the same sidewalk the residents will use.
The transit measure
The source places the site one block from City Hall and two blocks from Civic Center BART. Build the arrival plan on that measure.
Ask the supplier for the walking route and the door the group uses. Ask what happens to that route on a construction day.
The wider conversion calendar
No major office-to-housing conversion is under construction in San Francisco. Forge Development Partners terminated its agreement to convert 785 Market Street, per Sarah Klearman's reporting in the San Francisco Business Times.
Plans went in during recent weeks at 575 Sutter Street, 901 Market Street and 2300 Stockton Street. Each address carries a construction window that no published schedule covers. Map the three against a 2027 to 2029 group calendar.
Office vacancy stands around 30 percent according to city records. The market has posted four straight quarters of positive net absorption, and the two most recent quarters were the strongest since 2019.
What the record leaves open
Unit sizes, tenure, rent level and delivery date are unstated. The record names no architect and no general contractor.
104 is the count to carry into a contract. One unit has moved since the announcement, so check the number against the permit at each stage.
The one-page supplier brief
Site address, unit count, the three approaches, the 101 Polk shared amenity arrangement, and a written request for permit status and traffic management.
Review the page at each phase. A filing can sit for a year.